hollow core短语⁶¹⁰²⁹ 基本例句 中空型芯 Refering to correlation standard, this subject discusses structure property indexes determine, calculation and drawing up test plan of prestressed concrete hollow core slab by engineering. 本文参照相关标准，并结合工作实际，对预应力混凝土空心板结构性能检测指标的确定、计算及检测方案制定等值得注意的几个问题进行了讨论。 dictall